Data Transmission by an Alternating Frequency Analog Signal

1. A system for compressing digital data, comprising: a processor for receiving digital words and assigning frequencies to the digital words, wherein each digital word uniquely corresponds to an assigned frequency; and a frequency generator for generating a signal having alternating frequencies corresponding to the assigned frequencies, wherein, for each assigned frequency, the frequency generator generates the signal for a predetermined number of cycles of the assigned frequency.

2. The system of claim 1 , wherein the processor assigns frequencies to the digital words according to a lookup table.

3. The system of claim 2 , wherein the signal has a constant amplitude.

4. The system of claim 2 , wherein the predetermined number of cycles is one cycle.

5. The system of claim 4 , wherein the predetermined number of cycles is one-half cycle.

6. A system for decompressing digital data from an analog signal that alternates its frequency every predetermined number of cycles, comprising: a frequency detector for receiving the analog signal and detecting, for each duration of the predetermined number of cycles, the assigned frequency of the analog signal, and a processor for determining a digital word corresponding to the detected assigned frequency.

7. The system of claim 6 , wherein the frequency detector comprises a plurality of Finite Impulse Response (FIR) filters, each FIR filter corresponding to an assigned frequency.

8. The system of claim 7 , wherein the predetermined number of cycles is one cycle.

9. The system of claim 8 , wherein the predetermined number of cycles is one-half cycle.

10. A method of compressing digital data comprising: providing a set of digital words and a corresponding set of frequency assignments, each frequency assignment corresponding uniquely to a digital word; receiving a digital word from the set of digital words; assigning the corresponding frequency to the received digital word; and generating a sinusoid at the assigned frequency for a predetermined number of cycles of the assigned frequency.

11. The method of claim 10 , wherein the predetermined number of cycles is one cycle.

12. The method of claim 10 , wherein the predetermined number of cycles is one-half cycle.